What happens when spark plug wires go bad?
In this regard, do spark plug wires go bad?
Spark plug wires, sometimes called ignition cables, aren't as common as they used to be, but some cars made in the last couple decades still have them. If they go bad, your engine will likely suffer in terms of performance and fuel efficiency. A faulty spark plug wire can cause several problems: 1.
Furthermore, how long do plug wires last? If the vehicle is equipped with spark plug wires, they should be checked at the time of spark plug replacement. When they are old and crispy, just disengaging them from the spark plug can cause them to come apart. A quality set of spark plug wires can generally last around 60,000 to 70,000 miles.
Also Know, how often should spark plug wires be replaced?
That's why it pays to replace your spark plug wires before they wear out. We recommend changing them during spark plug changes (whenever your owner's manual recommends, usually between 60,000 and 100,000 miles).
How do I know if I need new spark plug wires?
Signs & Symptoms of Bad Spark Plug Wires
- Rough Engine Idle. The most common symptom of bad spark plug wires is a rough engine idle.
- Engine Miss. An engine miss, which normally occurs as the result of erratic or incomplete engine combustion, is another common symptom of bad spark plug wires.
- Engine Hesitation.
- Reduced Engine Power.
- Engine Surging.